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JPEGãƒ„ãƒ¼ãƒ« / ã‚‚ã†ãƒ‘ãƒ³ãƒ„ã¯ã‹ãªã„
ã•ã¾ã–ã¾ãªç”»åƒç·¨é›†ã‚½ãƒ•ãƒˆã§ã®JPEGå½¢å¼ã®ä¿å˜ã®æ–¹æ³•(ã©ã‚“ãªã‚ªãƒ—ã‚·ãƒ§ãƒ³ãŒä½¿ãˆã‚‹ã‹ãªã©)ã‚’ç´¹ä»‹ã—ã¾ã™ã€‚ ç”»åƒã®ç¨®é¡žã¨ä½¿ã„åˆ†ã‘ã§ã€ŒJPEGã§ä¿å˜ã™ã‚‹å ´åˆã¯ç”»è³ªãªã©ã®ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ã‚’æ±ºã‚ã¦ã‚„ã‚‹å¿…è¦ãŒã‚ã‚Šã¾ã™ã€ã¨æ›¸ãã¾ã—ãŸã€‚ ç”»è³ªã€å½¢å¼ãƒ»æœ€é©åŒ–ã€ãƒ€ã‚¦ãƒ³ã‚µãƒ³ãƒ—ãƒªãƒ³ã‚° ãªã©ã®ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ãŒã‚ã‚Šã¾ã™ã€‚ ãã‚ã—ã„ã“ã¨ã¯JPEGç”»åƒåœ§ç¸®FAQ ãã®1ã€[5] JPEGä¿å˜ã®æ™‚ã®ã‚ˆã„ã€Œå“è³ªè¨å®šå€¤ã€ã£ã¦?ã‚’èªã‚“ã§ãã ã•ã„ã€‚ã¨ã„ã„ã¤ã¤ã€å°‘ã—ã¯è§¦ã‚Œã¦ãŠã‹ãªã„ã¨ã‚ã¨ã®èª¬æ˜ŽãŒã—ã«ãã„ã®ã§ç°¡å˜ã«èª¬æ˜Žã—ã¾ã™ã€‚ ç”»è³ªã‚‚ã—ãã¯å“è³ª å‡ºåŠ›ç”»åƒå“è³ªã®è¨å®šã€‚ç”»è³ªã‚’ä¸Šã’ã‚‹ã¨ãƒ•ã‚¡ã‚¤ãƒ«ã‚µã‚¤ã‚ºã‚‚å¤§ãããªã‚Šã¾ã™ã€‚ å½¢å¼ JPEGã«ã¯é€šå¸¸ã®ã‚‚ã®(ãƒ™ãƒ¼ã‚¹ãƒ©ã‚¤ãƒ³)ã¨ãƒ—ãƒã‚°ãƒ¬ãƒƒã‚·ãƒ–ã®2ã¨ãŠã‚Šã‚ã‚Šã¾ã™ã€‚ã©ã¡ã‚‰ã‚’ä½¿ãˆã°ãƒ•ã‚¡ã‚¤ãƒ«ã‚µã‚¤ã‚ºãŒå°ã•ããªã‚‹ã‹ã¯ç”»åƒã«ã‚ˆã‚Šã¾ã™ãŒã€ã‚µãƒ ãƒã‚¤ãƒ«ç”¨ãªã©ã®å°ã•ã„ã‚‚ã®ã§ãªã‘ã‚Œã°ãƒ—ãƒã‚°ãƒ¬ãƒƒã‚·ãƒ–ã®æ–¹ãŒå°‘ã—å°ã•ããªã‚‹ã‚ˆã†ã§ã™ã€‚ç”»è³ªã¯å¤‰åŒ–ãªã—
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JPEG FAQ Index
jpeg-faq/part1: Multipart - Single Part Subject: JPEG image compression FAQ, part 1/2 Maintainer: tgl@netcom.com (Tom Lane) Last Posted: Mon, 29 Mar 1999 02:24:27 GMT Last-modified: 28 March 1999 Posting-Frequency: every 14 days jpeg-faq/part2: Multipart - Single Part Subject: JPEG image compression FAQ, part 2/2 Maintainer: tgl@netcom.com (Tom Lane) Last Posted: Mon, 29 Mar 1999 02:24:34 GMT Last
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Independent JPEG Group's JPEG software ã®ä½¿ã„æ–¹ ç›®æ¬¡ ç›®æ¬¡ ã¯ã˜ã‚ã« ä¸€èˆ¬çš„ãªä½¿ç”¨æ³• CJPEG ã®è©³ç´° cjpeg ã®åŸºæœ¬çš„ãªã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã‚¹ã‚¤ãƒƒãƒ cjpeg ã®é«˜åº¦ãªã‚¹ã‚¤ãƒƒãƒ JPEG ã®è©³ç´°ã«è©³ã—ã„äººå‘ã‘ã®ã‚¹ã‚¤ãƒƒãƒ DJPEG ã®è©³ç´° djpeg ã®åŸºæœ¬çš„ãªã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã‚¹ã‚¤ãƒƒãƒ djpeg ã®é«˜åº¦ãªã‚¹ã‚¤ãƒƒãƒ CJPEG ã®ä½¿ã†ä¸Šã§ã®ãƒ’ãƒ³ãƒˆ DJPEG ã®ä½¿ã†ä¸Šã§ã®ãƒ’ãƒ³ãƒˆ CJPEG/DJPEG ã«å…±é€šã™ã‚‹ãƒ’ãƒ³ãƒˆ JPEGTRAN ã‚³ãƒ¡ãƒ³ãƒˆãƒ»ãƒ¦ãƒ¼ãƒ†ã‚£ãƒªã‚£ãƒ†ã‚£ãƒ¼ â€»ã“ã®æ—¥æœ¬èªžè¨³ã«ã¤ã„ã¦ ã¯ã˜ã‚ã« ã“ã‚Œã‚‰ã®ãƒ—ãƒã‚°ãƒ©ãƒ ã¯ã€JPEG ç”»åƒã®åœ§ç¸®ã¨å±•é–‹ã‚’è¡Œãªã„ã¾ã™ã€‚ JPEG (ã‚¸ã‚§ã‚¤ãƒšã‚°ã¨èªã‚€) ã¯ã€ ãƒ•ãƒ«ã‚«ãƒ©ãƒ¼ç”»åƒã¨ã‚°ãƒ¬ã‚¤ã‚¹ã‚±ãƒ¼ãƒ«(ãƒ¢ãƒŽã‚¯ãƒ)ç”»åƒã®ãŸã‚ã®æ¨™æº–åŒ–ã•ã‚ŒãŸç”»åƒåœ§ç¸®æ³•ã§ã™ã€‚ JPEG ã¯ã€Œå®Ÿä¸–ç•Œã®ã€é¢¨æ™¯ã€ ä¾‹ãˆã°ã‚¹ã‚ãƒ£ãƒŠãƒ¼ã§å–ã‚Šè¾¼ã‚“ã å†™çœŸãª
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